Sump Pump Running Constantly
A sump pump that never shuts off will burn out within days. Fix stuck float switches, failed check valves, and drainage problems.
National average cost: $196–$392 • Free diagnosis, no credit card needed
Low estimate
$168
National average
$280
High estimate
$420
National averages based on Angi, HomeAdvisor, and Thumbtack data (2026). Local rates vary — enter your city below or use the chat for a local estimate.
What to Expect with Sump Pump Running Constantly
A sump pump that runs without stopping is on a fast path to motor burnout — most residential pumps aren't designed for more than 7–10 hours of continuous operation. If your pump is running constantly, act quickly.
The most common cause is a stuck float switch telling the pump the water level is always high. Check that the float arm or ball moves freely — if it's tangled on the discharge pipe or pump housing, you may be able to free it yourself. If the float is working but the pump keeps running, the issue is likely a failed check valve allowing pumped water to cycle back into the pit.
High water table is another common cause in certain neighborhoods near rivers or low-lying areas. If the pit refills within seconds of pumping, you may need a higher-capacity pump or a secondary pump system. A waterproofing contractor can assess your drainage situation and recommend the right solution.
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Frequently Asked Questions
How much does sump pump running constantly cost? ▼
Nationally, sump pump running constantly typically costs $196–$392. Your local market, the extent of the work, and whether emergency service is needed will affect the final price. Use our free diagnosis tool to get a realistic estimate before anyone shows up.
How do I know if I need running constantly or a full replacement? ▼
A good rule of thumb: if the repair cost exceeds 50% of a new pump's installed price, replace it — especially if the pump is over 7 years old. Our AI chat can walk you through the diagnostic questions a technician would ask to help you figure out which situation you're in.
How quickly can a contractor respond? ▼
Most contractors in our network can respond same-day for urgent pump issues, especially during business hours.
Do I need a permit? ▼
Repairs and replacements typically do not require a permit. New installations and pit excavation do. Your contractor will advise based on the specific scope of work.
Why sumppump.ai
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- ✓ 24/7 emergency service available
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